| Message ID | 20210428065440.3704-8-roger.lu@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | soc: mediatek: SVS: introduce MTK SVS | expand |
On Wed, 2021-04-28 at 14:54 +0800, Roger Lu wrote: > Signed-off-by: Roger Lu <roger.lu@mediatek.com> > --- > drivers/soc/mediatek/mtk-svs.c | 485 > ++++++++++++++++++++++++++++++++- > 1 file changed, 479 insertions(+), 6 deletions(-) > Reviewed-by: YT Lee <yt.lee@mediatek.com> > diff --git a/drivers/soc/mediatek/mtk-svs.c > b/drivers/soc/mediatek/mtk-svs.c > index 8794a2d87baa..9a0cc9cbf679 100644 > --- a/drivers/soc/mediatek/mtk-svs.c > +++ b/drivers/soc/mediatek/mtk-svs.c > @@ -36,6 +36,10 @@ > #define SVSB_CCI BIT(2) > #define SVSB_GPU BIT(3) > > +/* svs bank 2-line type */ > +#define SVSB_LOW BIT(4) > +#define SVSB_HIGH BIT(5) > + > /* svs bank mode support */ > #define SVSB_MODE_ALL_DISABLE 0 > #define SVSB_MODE_INIT01 BIT(1) > @@ -323,6 +327,7 @@ struct svs_platform { > * @volts: bank voltages > * @reg_data: bank register data of each phase > * @freq_base: reference frequency for bank init > + * @turn_freq_base: refenrece frequency for turn point > * @vboot: voltage request for bank init01 stage only > * @volt_step: bank voltage step > * @volt_base: bank voltage base > @@ -343,6 +348,8 @@ struct svs_platform { > * @hw_id: bank hardware identification > * @ctl0: bank thermal sensor selection > * @cpu_id: cpu core id for SVS CPU only > + * @turn_pt: turn point informs which opp_volt calculated by > high/low bank. > + * @type: bank type to represent it is 2-line (high/low) bank or 1- > line bank. > * > * Other structure members which are not listed above are svs > platform > * efuse data for bank init > @@ -371,6 +378,7 @@ struct svs_bank { > u32 volts[16]; > u32 reg_data[SVSB_PHASE_NUM][SVS_REG_NUM]; > u32 freq_base; > + u32 turn_freq_base; > u32 vboot; > u32 volt_step; > u32 volt_base; > @@ -410,6 +418,8 @@ struct svs_bank { > u32 hw_id; > u32 ctl0; > u32 cpu_id; > + u32 turn_pt; > + u32 type; > }; > > static u32 percent(u32 numerator, u32 denominator) > @@ -445,6 +455,37 @@ static u32 svs_bank_volt_to_opp_volt(u32 > svsb_volt, u32 svsb_volt_step, > return (svsb_volt * svsb_volt_step) + svsb_volt_base; > } > > +static u32 svs_opp_volt_to_bank_volt(u32 opp_u_volt, u32 > svsb_volt_step, > + u32 svsb_volt_base) > +{ > + return (opp_u_volt - svsb_volt_base) / svsb_volt_step; > +} > + > +static int svs_sync_bank_volts_from_opp(struct svs_bank *svsb) > +{ > + struct dev_pm_opp *opp; > + u32 i, opp_u_volt; > + > + for (i = 0; i < svsb->opp_count; i++) { > + opp = dev_pm_opp_find_freq_exact(svsb->opp_dev, > + svsb->opp_freqs[i], > + true); > + if (IS_ERR(opp)) { > + dev_err(svsb->dev, "cannot find freq = %u > (%ld)\n", > + svsb->opp_freqs[i], PTR_ERR(opp)); > + return PTR_ERR(opp); > + } > + > + opp_u_volt = dev_pm_opp_get_voltage(opp); > + svsb->volts[i] = svs_opp_volt_to_bank_volt(opp_u_volt, > + svsb- > >volt_step, > + svsb- > >volt_base); > + dev_pm_opp_put(opp); > + } > + > + return 0; > +} > + > static int svs_get_bank_zone_temperature(const char *tzone_name, > int *tzone_temp) > { > @@ -460,7 +501,7 @@ static int svs_get_bank_zone_temperature(const > char *tzone_name, > static int svs_adjust_pm_opp_volts(struct svs_bank *svsb, bool > force_update) > { > int tzone_temp = 0, ret = -EPERM; > - u32 i, svsb_volt, opp_volt, temp_offset = 0; > + u32 i, svsb_volt, opp_volt, temp_offset = 0, opp_start, > opp_stop; > > mutex_lock(&svsb->lock); > > @@ -474,6 +515,21 @@ static int svs_adjust_pm_opp_volts(struct > svs_bank *svsb, bool force_update) > goto unlock_mutex; > } > > + /* > + * 2-line bank updates its corresponding opp volts. > + * 1-line bank updates all opp volts. > + */ > + if (svsb->type == SVSB_HIGH) { > + opp_start = 0; > + opp_stop = svsb->turn_pt; > + } else if (svsb->type == SVSB_LOW) { > + opp_start = svsb->turn_pt; > + opp_stop = svsb->opp_count; > + } else { > + opp_start = 0; > + opp_stop = svsb->opp_count; > + } > + > /* Get thermal effect */ > if (svsb->phase == SVSB_PHASE_MON) { > if (svsb->temp > svsb->temp_upper_bound && > @@ -495,10 +551,16 @@ static int svs_adjust_pm_opp_volts(struct > svs_bank *svsb, bool force_update) > temp_offset += svsb->tzone_high_temp_offset; > else if (tzone_temp <= svsb->tzone_low_temp) > temp_offset += svsb->tzone_low_temp_offset; > + > + /* 2-line bank takes thermal factor to update all opp > volts */ > + if (svsb->type == SVSB_HIGH || svsb->type == SVSB_LOW) > { > + opp_start = 0; > + opp_stop = svsb->opp_count; > + } > } > > /* vmin <= svsb_volt (opp_volt) <= signed-off (default) voltage > */ > - for (i = 0; i < svsb->opp_count; i++) { > + for (i = opp_start; i < opp_stop; i++) { > if (svsb->phase == SVSB_PHASE_MON) { > svsb_volt = max(svsb->volts[i] + svsb- > >volt_offset + > temp_offset, svsb->vmin); > @@ -549,6 +611,184 @@ static u32 interpolate(u32 f0, u32 f1, u32 v0, > u32 v1, u32 fx) > return DIV_ROUND_UP(vx, 100); > } > > +static void svs_get_vops_v3(struct svs_platform *svsp) > +{ > + struct svs_bank *svsb = svsp->pbank; > + u32 i, vop_i, *vop, vop74, vop30, mask7_0 = GENMASK(7, 0); > + u32 b_sft, bits8 = 8, shift_byte = 0, reg_4bytes = 4; > + u32 middle_index = (svsb->opp_count / 2); > + u32 opp_start = 0, opp_stop = 0, turn_pt = svsb->turn_pt; > + > + if (svsb->phase == SVSB_PHASE_MON && > + svsb->volt_flags & SVSB_MON_VOLT_IGNORE) > + return; > + > + vop74 = svs_readl(svsp, VOP74); > + vop30 = svs_readl(svsp, VOP30); > + > + if (turn_pt < middle_index) { > + if (svsb->type == SVSB_HIGH) { > + /* We attain volts[0 ~ (turn_pt - 1)] */ > + for (i = 0; i < turn_pt; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + vop = (shift_byte < reg_4bytes) ? > &vop30 : > + &vop7 > 4; > + svsb->volts[i] = (*vop >> b_sft) & > mask7_0; > + shift_byte++; > + } > + } else if (svsb->type == SVSB_LOW) { > + /* > + * We attain volts[turn_pt] + > + * volts[vop_i ~ (opp_count - 1)] > + */ > + vop_i = svsb->opp_count - 7; > + svsb->volts[turn_pt] = vop30 & mask7_0; > + shift_byte++; > + for (i = vop_i; i < svsb->opp_count; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + vop = (shift_byte < reg_4bytes) ? > &vop30 : > + &vop7 > 4; > + svsb->volts[i] = (*vop >> b_sft) & > mask7_0; > + shift_byte++; > + } > + > + /* > + * We attain volts[turn_pt + 1 ~ (vop_i - 1)] > + * by interpolate > + */ > + for (i = turn_pt + 1; i < vop_i; i++) > + svsb->volts[i] = > + interpolate(svsb- > >freqs_pct[turn_pt], > + svsb- > >freqs_pct[vop_i], > + svsb- > >volts[turn_pt], > + svsb->volts[vop_i], > + svsb- > >freqs_pct[i]); > + } > + } else { > + if (svsb->type == SVSB_HIGH) { > + /* We attain volts[0] + volts[vop_i ~ (turn_pt > - 1)] */ > + vop_i = turn_pt - 7; > + svsb->volts[0] = vop30 & mask7_0; > + shift_byte++; > + for (i = vop_i; i < turn_pt; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + vop = (shift_byte < reg_4bytes) ? > &vop30 : > + &vop7 > 4; > + svsb->volts[i] = (*vop >> b_sft) & > mask7_0; > + shift_byte++; > + } > + > + /* We attain volts[1 ~ (vop_i - 1)] by > interpolate */ > + for (i = 1; i < vop_i; i++) > + svsb->volts[i] = > + interpolate(svsb->freqs_pct[0], > + svsb- > >freqs_pct[vop_i], > + svsb->volts[0], > + svsb->volts[vop_i], > + svsb- > >freqs_pct[i]); > + } else if (svsb->type == SVSB_LOW) { > + /* We attain volts[turn_pt ~ (opp_count - 1)] > */ > + for (i = turn_pt; i < svsb->opp_count; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + vop = (shift_byte < reg_4bytes) ? > &vop30 : > + &vop7 > 4; > + svsb->volts[i] = (*vop >> b_sft) & > mask7_0; > + shift_byte++; > + } > + } > + } > + > + if (svsb->volt_flags & SVSB_INIT02_RM_DVTFIXED) { > + if (svsb->type == SVSB_HIGH) { > + opp_start = 0; > + opp_stop = svsb->turn_pt; > + } else if (svsb->type == SVSB_LOW) { > + opp_start = svsb->turn_pt; > + opp_stop = svsb->opp_count; > + } > + > + for (i = opp_start; i < opp_stop; i++) > + svsb->volts[i] -= svsb->dvt_fixed; > + } > +} > + > +static void svs_set_freqs_pct_v3(struct svs_platform *svsp) > +{ > + struct svs_bank *svsb = svsp->pbank; > + u32 i, freq_i, *freq_pct, freq_pct74 = 0; > + u32 freq_pct30 = svsb->freqs_pct[0]; > + u32 b_sft, bits8 = 8, shift_byte = 0, reg_4bytes = 4; > + u32 middle_index = (svsb->opp_count / 2); > + u32 turn_pt = middle_index; > + > + for (i = 0; i < svsb->opp_count; i++) { > + if (svsb->opp_freqs[i] <= svsb->turn_freq_base) { > + svsb->turn_pt = i; > + break; > + } > + } > + > + turn_pt = svsb->turn_pt; > + > + /* Target is to fill out freq_pct74 / freq_pct30 */ > + if (turn_pt < middle_index) { > + if (svsb->type == SVSB_HIGH) { > + /* We select freqs_pct[0 ~ (turn_pt - 1)] */ > + for (i = 0; i < turn_pt; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + freq_pct = (shift_byte < reg_4bytes) ? > + &freq_pct30 : &freq_pct74; > + *freq_pct |= (svsb->freqs_pct[i] << > b_sft); > + shift_byte++; > + } > + } else if (svsb->type == SVSB_LOW) { > + /* > + * We select freqs_pct[turn_pt] + > + * freqs_pct[(opp_count - 7) ~ (opp_count -1)] > + */ > + freq_pct30 = svsb->freqs_pct[turn_pt]; > + shift_byte++; > + freq_i = svsb->opp_count - 7; > + for (i = freq_i; i < svsb->opp_count; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + freq_pct = (shift_byte < reg_4bytes) ? > + &freq_pct30 : &freq_pct74; > + *freq_pct |= (svsb->freqs_pct[i] << > b_sft); > + shift_byte++; > + } > + } > + } else { > + if (svsb->type == SVSB_HIGH) { > + /* > + * We select freqs_pct[0] + > + * freqs_pct[(turn_pt - 7) ~ (turn_pt - 1)] > + */ > + freq_pct30 = svsb->freqs_pct[0]; > + shift_byte++; > + freq_i = turn_pt - 7; > + for (i = freq_i; i < turn_pt; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + freq_pct = (shift_byte < reg_4bytes) ? > + &freq_pct30 : &freq_pct74; > + *freq_pct |= (svsb->freqs_pct[i] << > b_sft); > + shift_byte++; > + } > + } else if (svsb->type == SVSB_LOW) { > + /* We select freqs_pct[turn_pt ~ (opp_count - > 1)] */ > + for (i = turn_pt; i < svsb->opp_count; i++) { > + b_sft = bits8 * (shift_byte % > reg_4bytes); > + freq_pct = (shift_byte < reg_4bytes) ? > + &freq_pct30 : &freq_pct74; > + *freq_pct |= (svsb->freqs_pct[i] << > b_sft); > + shift_byte++; > + } > + } > + } > + > + svs_writel(svsp, freq_pct74, FREQPCT74); > + svs_writel(svsp, freq_pct30, FREQPCT30); > +} > + > static void svs_get_vops_v2(struct svs_platform *svsp) > { > struct svs_bank *svsb = svsp->pbank; > @@ -868,6 +1108,25 @@ static int svs_init02(struct svs_platform > *svsp) > } > } > > + /* > + * 2-line high/low bank update its corresponding opp voltages > only. > + * Therefore, we sync voltages from opp for high/low bank > voltages > + * consistency. > + */ > + for (idx = 0; idx < svsp->bank_num; idx++) { > + svsb = &svsp->banks[idx]; > + > + if (!(svsb->mode_support & SVSB_MODE_INIT02)) > + continue; > + > + if (svsb->type == SVSB_HIGH || svsb->type == SVSB_LOW) > { > + if (svs_sync_bank_volts_from_opp(svsb)) { > + dev_err(svsb->dev, "sync volt fail\n"); > + return -EPERM; > + } > + } > + } > + > return 0; > } > > @@ -1114,7 +1373,12 @@ static int svs_resource_setup(struct > svs_platform *svsp) > svsb->name = "SVSB_CCI"; > break; > case SVSB_GPU: > - svsb->name = "SVSB_GPU"; > + if (svsb->type == SVSB_HIGH) > + svsb->name = "SVSB_GPU_HIGH"; > + else if (svsb->type == SVSB_LOW) > + svsb->name = "SVSB_GPU_LOW"; > + else > + svsb->name = "SVSB_GPU"; > break; > default: > WARN_ON(1); > @@ -1176,6 +1440,88 @@ static int svs_resource_setup(struct > svs_platform *svsp) > return 0; > } > > +static bool svs_mt8192_efuse_parsing(struct svs_platform *svsp) > +{ > + struct svs_bank *svsb; > + struct nvmem_cell *cell; > + u32 idx, i, ft_pgm, vmin, golden_temp; > + > + for (i = 0; i < svsp->efuse_num; i++) > + if (svsp->efuse[i]) > + dev_info(svsp->dev, "M_HW_RES%d: 0x%08x\n", > + i, svsp->efuse[i]); > + > + /* Svs efuse parsing */ > + ft_pgm = svsp->efuse[0] & GENMASK(7, 0); > + vmin = (svsp->efuse[19] >> 4) & GENMASK(1, 0); > + > + for (idx = 0; idx < svsp->bank_num; idx++) { > + svsb = &svsp->banks[idx]; > + > + if (svsb->sw_id != SVSB_GPU) > + return false; > + > + if (vmin == 0x1) > + svsb->vmin = 0x1e; > + > + if (ft_pgm == 0) > + svsb->volt_flags |= SVSB_INIT01_VOLT_IGNORE; > + > + if (svsb->type == SVSB_LOW) { > + svsb->mtdes = svsp->efuse[10] & GENMASK(7, 0); > + svsb->bdes = (svsp->efuse[10] >> 16) & > GENMASK(7, 0); > + svsb->mdes = (svsp->efuse[10] >> 24) & > GENMASK(7, 0); > + svsb->dcbdet = (svsp->efuse[17]) & GENMASK(7, > 0); > + svsb->dcmdet = (svsp->efuse[17] >> 8) & > GENMASK(7, 0); > + svsb->vmax += svsb->dvt_fixed; > + } else if (svsb->type == SVSB_HIGH) { > + svsb->mtdes = svsp->efuse[9] & GENMASK(7, 0); > + svsb->bdes = (svsp->efuse[9] >> 16) & > GENMASK(7, 0); > + svsb->mdes = (svsp->efuse[9] >> 24) & > GENMASK(7, 0); > + svsb->dcbdet = (svsp->efuse[17] >> 16) & > GENMASK(7, 0); > + svsb->dcmdet = (svsp->efuse[17] >> 24) & > GENMASK(7, 0); > + svsb->vmax += svsb->dvt_fixed; > + } > + } > + > + /* Thermal efuse parsing */ > + cell = nvmem_cell_get(svsp->dev, "t-calibration-data"); > + if (IS_ERR_OR_NULL(cell)) { > + dev_err(svsp->dev, "no thermal cell, no mon mode\n"); > + for (idx = 0; idx < svsp->bank_num; idx++) { > + svsb = &svsp->banks[idx]; > + svsb->mode_support &= ~SVSB_MODE_MON; > + } > + > + return true; > + } > + > + svsp->tefuse = nvmem_cell_read(cell, &svsp->tefuse_num); > + svsp->tefuse_num /= sizeof(u32); > + nvmem_cell_put(cell); > + > + for (i = 0; i < svsp->tefuse_num; i++) > + if (svsp->tefuse[i] != 0) > + break; > + > + if (i == svsp->tefuse_num) > + golden_temp = 50; /* All thermal efuse data are 0 */ > + else > + golden_temp = (svsp->tefuse[0] >> 24) & GENMASK(7, 0); > + > + for (idx = 0; idx < svsp->bank_num; idx++) { > + svsb = &svsp->banks[idx]; > + > + if (svsb->sw_id != SVSB_GPU) > + return false; > + > + svsb->mts = 500; > + svsb->bts = (((500 * golden_temp + 250460) / 1000) - > 25) * 4; > + } > + > + return true; > +} > + > static bool svs_mt8183_efuse_parsing(struct svs_platform *svsp) > { > struct thermal_parameter tp; > @@ -1598,10 +1944,11 @@ static int svs_status_debug_show(struct > seq_file *m, void *v) > > ret = svs_get_bank_zone_temperature(svsb->tzone_name, > &tzone_temp); > if (ret) > - seq_printf(m, "%s: no \"%s\" zone?\n", svsb->name, > - svsb->tzone_name); > + seq_printf(m, "%s: no \"%s\" zone? turn_pt = %u\n", > + svsb->name, svsb->tzone_name, svsb- > >turn_pt); > else > - seq_printf(m, "%s: temperature = %d\n", svsb->name, > tzone_temp); > + seq_printf(m, "%s: temperature = %d, turn_pt = %u\n", > + svsb->name, tzone_temp, svsb->turn_pt); > > for (i = 0; i < svsb->opp_count; i++) { > opp = dev_pm_opp_find_freq_exact(svsb->opp_dev, > @@ -1734,6 +2081,89 @@ static int svs_create_svs_debug_cmds(struct > svs_platform *svsp) > return 0; > } > > +static struct svs_bank svs_mt8192_banks[] = { > + { > + .sw_id = SVSB_GPU, > + .set_freqs_pct = svs_set_freqs_pct_v3, > + .get_vops = svs_get_vops_v3, > + .hw_id = 0, > + .tzone_name = "gpu1", > + .buck_name = "mali", > + .volt_flags = SVSB_INIT02_RM_DVTFIXED | > + SVSB_MON_VOLT_IGNORE, > + .mode_support = SVSB_MODE_INIT02, > + .opp_count = 16, > + .freq_base = 688000000, > + .turn_freq_base = 688000000, > + .vboot = 0x38, > + .volt_step = 6250, > + .volt_base = 400000, > + .volt_offset = 0, > + .vmax = 0x60, > + .vmin = 0x1a, > + .dthi = 0x1, > + .dtlo = 0xfe, > + .det_window = 0xa28, > + .det_max = 0xffff, > + .age_config = 0x555555, > + .agem = 0, > + .dc_config = 0x1, > + .dvt_fixed = 0x1, > + .vco = 0x18, > + .chk_shift = 0x87, > + .temp_upper_bound = 0x64, > + .temp_lower_bound = 0xb2, > + .tzone_high_temp = 85000, > + .tzone_high_temp_offset = 0, > + .tzone_low_temp = 25000, > + .tzone_low_temp_offset = 7, > + .core_sel = 0x0fff0100, > + .int_st = BIT(0), > + .ctl0 = 0x00540003, > + .type = SVSB_LOW, > + }, > + { > + .sw_id = SVSB_GPU, > + .set_freqs_pct = svs_set_freqs_pct_v3, > + .get_vops = svs_get_vops_v3, > + .hw_id = 1, > + .tzone_name = "gpu1", > + .buck_name = "mali", > + .volt_flags = SVSB_INIT02_RM_DVTFIXED | > + SVSB_MON_VOLT_IGNORE, > + .mode_support = SVSB_MODE_INIT02 | > SVSB_MODE_MON, > + .opp_count = 16, > + .freq_base = 902000000, > + .turn_freq_base = 688000000, > + .vboot = 0x38, > + .volt_step = 6250, > + .volt_base = 400000, > + .volt_offset = 0, > + .vmax = 0x60, > + .vmin = 0x1a, > + .dthi = 0x1, > + .dtlo = 0xfe, > + .det_window = 0xa28, > + .det_max = 0xffff, > + .age_config = 0x555555, > + .agem = 0, > + .dc_config = 0x1, > + .dvt_fixed = 0x6, > + .vco = 0x18, > + .chk_shift = 0x87, > + .temp_upper_bound = 0x64, > + .temp_lower_bound = 0xb2, > + .tzone_high_temp = 85000, > + .tzone_high_temp_offset = 0, > + .tzone_low_temp = 25000, > + .tzone_low_temp_offset = 7, > + .core_sel = 0x0fff0101, > + .int_st = BIT(1), > + .ctl0 = 0x00540003, > + .type = SVSB_HIGH, > + }, > +}; > + > static struct svs_bank svs_mt8183_banks[] = { > { > .sw_id = SVSB_CPU_LITTLE, > @@ -1888,6 +2318,46 @@ static struct svs_bank svs_mt8183_banks[] = { > }, > }; > > +static int svs_get_svs_mt8192_platform_data(struct svs_platform > *svsp) > +{ > + struct device *dev; > + struct svs_bank *svsb; > + u32 idx; > + > + svsp->name = "mt8192-svs"; > + svsp->banks = svs_mt8192_banks; > + svsp->efuse_parsing = svs_mt8192_efuse_parsing; > + svsp->regs = svs_regs_v2; > + svsp->irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT; > + svsp->bank_num = ARRAY_SIZE(svs_mt8192_banks); > + svsp->efuse_check = 9; > + > + svsp->rst = devm_reset_control_get_optional(svsp->dev, > "svs_rst"); > + if (IS_ERR(svsp->rst)) { > + dev_err_probe(svsp->dev, PTR_ERR(svsp->rst), > + "cannot get svs reset control\n"); > + return PTR_ERR(svsp->rst); > + } > + > + dev = svs_add_device_link(svsp, "lvts"); > + if (IS_ERR(dev)) > + return PTR_ERR(dev); > + > + for (idx = 0; idx < svsp->bank_num; idx++) { > + svsb = &svsp->banks[idx]; > + > + if (svsb->type == SVSB_HIGH) > + svsb->opp_dev = svs_add_device_link(svsp, > "mali"); > + else if (svsb->type == SVSB_LOW) > + svsb->opp_dev = svs_get_subsys_device(svsp, > "mali"); > + > + if (IS_ERR(svsb->opp_dev)) > + return PTR_ERR(svsb->opp_dev); > + } > + > + return 0; > +} > + > static int svs_get_svs_mt8183_platform_data(struct svs_platform > *svsp) > { > struct device *dev; > @@ -1941,6 +2411,9 @@ static const struct of_device_id > mtk_svs_of_match[] = { > { > .compatible = "mediatek,mt8183-svs", > .data = &svs_get_svs_mt8183_platform_data, > + }, { > + .compatible = "mediatek,mt8192-svs", > + .data = &svs_get_svs_mt8192_platform_data, > }, { > /* Sentinel */ > },
> Signed-off-by: Roger Lu <roger.lu@mediatek.com> > Reviewed-by: YT Lee <yt.lee@mediatek.com> > --- > drivers/soc/mediatek/mtk-svs.c | 485 ++++++++++++++++++++++++++++++++- > 1 file changed, 479 insertions(+), 6 deletions(-) > Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c index 8794a2d87baa..9a0cc9cbf679 100644 --- a/drivers/soc/mediatek/mtk-svs.c +++ b/drivers/soc/mediatek/mtk-svs.c @@ -36,6 +36,10 @@ #define SVSB_CCI BIT(2) #define SVSB_GPU BIT(3) +/* svs bank 2-line type */ +#define SVSB_LOW BIT(4) +#define SVSB_HIGH BIT(5) + /* svs bank mode support */ #define SVSB_MODE_ALL_DISABLE 0 #define SVSB_MODE_INIT01 BIT(1) @@ -323,6 +327,7 @@ struct svs_platform { * @volts: bank voltages * @reg_data: bank register data of each phase * @freq_base: reference frequency for bank init + * @turn_freq_base: refenrece frequency for turn point * @vboot: voltage request for bank init01 stage only * @volt_step: bank voltage step * @volt_base: bank voltage base @@ -343,6 +348,8 @@ struct svs_platform { * @hw_id: bank hardware identification * @ctl0: bank thermal sensor selection * @cpu_id: cpu core id for SVS CPU only + * @turn_pt: turn point informs which opp_volt calculated by high/low bank. + * @type: bank type to represent it is 2-line (high/low) bank or 1-line bank. * * Other structure members which are not listed above are svs platform * efuse data for bank init @@ -371,6 +378,7 @@ struct svs_bank { u32 volts[16]; u32 reg_data[SVSB_PHASE_NUM][SVS_REG_NUM]; u32 freq_base; + u32 turn_freq_base; u32 vboot; u32 volt_step; u32 volt_base; @@ -410,6 +418,8 @@ struct svs_bank { u32 hw_id; u32 ctl0; u32 cpu_id; + u32 turn_pt; + u32 type; }; static u32 percent(u32 numerator, u32 denominator) @@ -445,6 +455,37 @@ static u32 svs_bank_volt_to_opp_volt(u32 svsb_volt, u32 svsb_volt_step, return (svsb_volt * svsb_volt_step) + svsb_volt_base; } +static u32 svs_opp_volt_to_bank_volt(u32 opp_u_volt, u32 svsb_volt_step, + u32 svsb_volt_base) +{ + return (opp_u_volt - svsb_volt_base) / svsb_volt_step; +} + +static int svs_sync_bank_volts_from_opp(struct svs_bank *svsb) +{ + struct dev_pm_opp *opp; + u32 i, opp_u_volt; + + for (i = 0; i < svsb->opp_count; i++) { + opp = dev_pm_opp_find_freq_exact(svsb->opp_dev, + svsb->opp_freqs[i], + true); + if (IS_ERR(opp)) { + dev_err(svsb->dev, "cannot find freq = %u (%ld)\n", + svsb->opp_freqs[i], PTR_ERR(opp)); + return PTR_ERR(opp); + } + + opp_u_volt = dev_pm_opp_get_voltage(opp); + svsb->volts[i] = svs_opp_volt_to_bank_volt(opp_u_volt, + svsb->volt_step, + svsb->volt_base); + dev_pm_opp_put(opp); + } + + return 0; +} + static int svs_get_bank_zone_temperature(const char *tzone_name, int *tzone_temp) { @@ -460,7 +501,7 @@ static int svs_get_bank_zone_temperature(const char *tzone_name, static int svs_adjust_pm_opp_volts(struct svs_bank *svsb, bool force_update) { int tzone_temp = 0, ret = -EPERM; - u32 i, svsb_volt, opp_volt, temp_offset = 0; + u32 i, svsb_volt, opp_volt, temp_offset = 0, opp_start, opp_stop; mutex_lock(&svsb->lock); @@ -474,6 +515,21 @@ static int svs_adjust_pm_opp_volts(struct svs_bank *svsb, bool force_update) goto unlock_mutex; } + /* + * 2-line bank updates its corresponding opp volts. + * 1-line bank updates all opp volts. + */ + if (svsb->type == SVSB_HIGH) { + opp_start = 0; + opp_stop = svsb->turn_pt; + } else if (svsb->type == SVSB_LOW) { + opp_start = svsb->turn_pt; + opp_stop = svsb->opp_count; + } else { + opp_start = 0; + opp_stop = svsb->opp_count; + } + /* Get thermal effect */ if (svsb->phase == SVSB_PHASE_MON) { if (svsb->temp > svsb->temp_upper_bound && @@ -495,10 +551,16 @@ static int svs_adjust_pm_opp_volts(struct svs_bank *svsb, bool force_update) temp_offset += svsb->tzone_high_temp_offset; else if (tzone_temp <= svsb->tzone_low_temp) temp_offset += svsb->tzone_low_temp_offset; + + /* 2-line bank takes thermal factor to update all opp volts */ + if (svsb->type == SVSB_HIGH || svsb->type == SVSB_LOW) { + opp_start = 0; + opp_stop = svsb->opp_count; + } } /* vmin <= svsb_volt (opp_volt) <= signed-off (default) voltage */ - for (i = 0; i < svsb->opp_count; i++) { + for (i = opp_start; i < opp_stop; i++) { if (svsb->phase == SVSB_PHASE_MON) { svsb_volt = max(svsb->volts[i] + svsb->volt_offset + temp_offset, svsb->vmin); @@ -549,6 +611,184 @@ static u32 interpolate(u32 f0, u32 f1, u32 v0, u32 v1, u32 fx) return DIV_ROUND_UP(vx, 100); } +static void svs_get_vops_v3(struct svs_platform *svsp) +{ + struct svs_bank *svsb = svsp->pbank; + u32 i, vop_i, *vop, vop74, vop30, mask7_0 = GENMASK(7, 0); + u32 b_sft, bits8 = 8, shift_byte = 0, reg_4bytes = 4; + u32 middle_index = (svsb->opp_count / 2); + u32 opp_start = 0, opp_stop = 0, turn_pt = svsb->turn_pt; + + if (svsb->phase == SVSB_PHASE_MON && + svsb->volt_flags & SVSB_MON_VOLT_IGNORE) + return; + + vop74 = svs_readl(svsp, VOP74); + vop30 = svs_readl(svsp, VOP30); + + if (turn_pt < middle_index) { + if (svsb->type == SVSB_HIGH) { + /* We attain volts[0 ~ (turn_pt - 1)] */ + for (i = 0; i < turn_pt; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + vop = (shift_byte < reg_4bytes) ? &vop30 : + &vop74; + svsb->volts[i] = (*vop >> b_sft) & mask7_0; + shift_byte++; + } + } else if (svsb->type == SVSB_LOW) { + /* + * We attain volts[turn_pt] + + * volts[vop_i ~ (opp_count - 1)] + */ + vop_i = svsb->opp_count - 7; + svsb->volts[turn_pt] = vop30 & mask7_0; + shift_byte++; + for (i = vop_i; i < svsb->opp_count; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + vop = (shift_byte < reg_4bytes) ? &vop30 : + &vop74; + svsb->volts[i] = (*vop >> b_sft) & mask7_0; + shift_byte++; + } + + /* + * We attain volts[turn_pt + 1 ~ (vop_i - 1)] + * by interpolate + */ + for (i = turn_pt + 1; i < vop_i; i++) + svsb->volts[i] = + interpolate(svsb->freqs_pct[turn_pt], + svsb->freqs_pct[vop_i], + svsb->volts[turn_pt], + svsb->volts[vop_i], + svsb->freqs_pct[i]); + } + } else { + if (svsb->type == SVSB_HIGH) { + /* We attain volts[0] + volts[vop_i ~ (turn_pt - 1)] */ + vop_i = turn_pt - 7; + svsb->volts[0] = vop30 & mask7_0; + shift_byte++; + for (i = vop_i; i < turn_pt; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + vop = (shift_byte < reg_4bytes) ? &vop30 : + &vop74; + svsb->volts[i] = (*vop >> b_sft) & mask7_0; + shift_byte++; + } + + /* We attain volts[1 ~ (vop_i - 1)] by interpolate */ + for (i = 1; i < vop_i; i++) + svsb->volts[i] = + interpolate(svsb->freqs_pct[0], + svsb->freqs_pct[vop_i], + svsb->volts[0], + svsb->volts[vop_i], + svsb->freqs_pct[i]); + } else if (svsb->type == SVSB_LOW) { + /* We attain volts[turn_pt ~ (opp_count - 1)] */ + for (i = turn_pt; i < svsb->opp_count; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + vop = (shift_byte < reg_4bytes) ? &vop30 : + &vop74; + svsb->volts[i] = (*vop >> b_sft) & mask7_0; + shift_byte++; + } + } + } + + if (svsb->volt_flags & SVSB_INIT02_RM_DVTFIXED) { + if (svsb->type == SVSB_HIGH) { + opp_start = 0; + opp_stop = svsb->turn_pt; + } else if (svsb->type == SVSB_LOW) { + opp_start = svsb->turn_pt; + opp_stop = svsb->opp_count; + } + + for (i = opp_start; i < opp_stop; i++) + svsb->volts[i] -= svsb->dvt_fixed; + } +} + +static void svs_set_freqs_pct_v3(struct svs_platform *svsp) +{ + struct svs_bank *svsb = svsp->pbank; + u32 i, freq_i, *freq_pct, freq_pct74 = 0; + u32 freq_pct30 = svsb->freqs_pct[0]; + u32 b_sft, bits8 = 8, shift_byte = 0, reg_4bytes = 4; + u32 middle_index = (svsb->opp_count / 2); + u32 turn_pt = middle_index; + + for (i = 0; i < svsb->opp_count; i++) { + if (svsb->opp_freqs[i] <= svsb->turn_freq_base) { + svsb->turn_pt = i; + break; + } + } + + turn_pt = svsb->turn_pt; + + /* Target is to fill out freq_pct74 / freq_pct30 */ + if (turn_pt < middle_index) { + if (svsb->type == SVSB_HIGH) { + /* We select freqs_pct[0 ~ (turn_pt - 1)] */ + for (i = 0; i < turn_pt; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + freq_pct = (shift_byte < reg_4bytes) ? + &freq_pct30 : &freq_pct74; + *freq_pct |= (svsb->freqs_pct[i] << b_sft); + shift_byte++; + } + } else if (svsb->type == SVSB_LOW) { + /* + * We select freqs_pct[turn_pt] + + * freqs_pct[(opp_count - 7) ~ (opp_count -1)] + */ + freq_pct30 = svsb->freqs_pct[turn_pt]; + shift_byte++; + freq_i = svsb->opp_count - 7; + for (i = freq_i; i < svsb->opp_count; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + freq_pct = (shift_byte < reg_4bytes) ? + &freq_pct30 : &freq_pct74; + *freq_pct |= (svsb->freqs_pct[i] << b_sft); + shift_byte++; + } + } + } else { + if (svsb->type == SVSB_HIGH) { + /* + * We select freqs_pct[0] + + * freqs_pct[(turn_pt - 7) ~ (turn_pt - 1)] + */ + freq_pct30 = svsb->freqs_pct[0]; + shift_byte++; + freq_i = turn_pt - 7; + for (i = freq_i; i < turn_pt; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + freq_pct = (shift_byte < reg_4bytes) ? + &freq_pct30 : &freq_pct74; + *freq_pct |= (svsb->freqs_pct[i] << b_sft); + shift_byte++; + } + } else if (svsb->type == SVSB_LOW) { + /* We select freqs_pct[turn_pt ~ (opp_count - 1)] */ + for (i = turn_pt; i < svsb->opp_count; i++) { + b_sft = bits8 * (shift_byte % reg_4bytes); + freq_pct = (shift_byte < reg_4bytes) ? + &freq_pct30 : &freq_pct74; + *freq_pct |= (svsb->freqs_pct[i] << b_sft); + shift_byte++; + } + } + } + + svs_writel(svsp, freq_pct74, FREQPCT74); + svs_writel(svsp, freq_pct30, FREQPCT30); +} + static void svs_get_vops_v2(struct svs_platform *svsp) { struct svs_bank *svsb = svsp->pbank; @@ -868,6 +1108,25 @@ static int svs_init02(struct svs_platform *svsp) } } + /* + * 2-line high/low bank update its corresponding opp voltages only. + * Therefore, we sync voltages from opp for high/low bank voltages + * consistency. + */ + for (idx = 0; idx < svsp->bank_num; idx++) { + svsb = &svsp->banks[idx]; + + if (!(svsb->mode_support & SVSB_MODE_INIT02)) + continue; + + if (svsb->type == SVSB_HIGH || svsb->type == SVSB_LOW) { + if (svs_sync_bank_volts_from_opp(svsb)) { + dev_err(svsb->dev, "sync volt fail\n"); + return -EPERM; + } + } + } + return 0; } @@ -1114,7 +1373,12 @@ static int svs_resource_setup(struct svs_platform *svsp) svsb->name = "SVSB_CCI"; break; case SVSB_GPU: - svsb->name = "SVSB_GPU"; + if (svsb->type == SVSB_HIGH) + svsb->name = "SVSB_GPU_HIGH"; + else if (svsb->type == SVSB_LOW) + svsb->name = "SVSB_GPU_LOW"; + else + svsb->name = "SVSB_GPU"; break; default: WARN_ON(1); @@ -1176,6 +1440,88 @@ static int svs_resource_setup(struct svs_platform *svsp) return 0; } +static bool svs_mt8192_efuse_parsing(struct svs_platform *svsp) +{ + struct svs_bank *svsb; + struct nvmem_cell *cell; + u32 idx, i, ft_pgm, vmin, golden_temp; + + for (i = 0; i < svsp->efuse_num; i++) + if (svsp->efuse[i]) + dev_info(svsp->dev, "M_HW_RES%d: 0x%08x\n", + i, svsp->efuse[i]); + + /* Svs efuse parsing */ + ft_pgm = svsp->efuse[0] & GENMASK(7, 0); + vmin = (svsp->efuse[19] >> 4) & GENMASK(1, 0); + + for (idx = 0; idx < svsp->bank_num; idx++) { + svsb = &svsp->banks[idx]; + + if (svsb->sw_id != SVSB_GPU) + return false; + + if (vmin == 0x1) + svsb->vmin = 0x1e; + + if (ft_pgm == 0) + svsb->volt_flags |= SVSB_INIT01_VOLT_IGNORE; + + if (svsb->type == SVSB_LOW) { + svsb->mtdes = svsp->efuse[10] & GENMASK(7, 0); + svsb->bdes = (svsp->efuse[10] >> 16) & GENMASK(7, 0); + svsb->mdes = (svsp->efuse[10] >> 24) & GENMASK(7, 0); + svsb->dcbdet = (svsp->efuse[17]) & GENMASK(7, 0); + svsb->dcmdet = (svsp->efuse[17] >> 8) & GENMASK(7, 0); + svsb->vmax += svsb->dvt_fixed; + } else if (svsb->type == SVSB_HIGH) { + svsb->mtdes = svsp->efuse[9] & GENMASK(7, 0); + svsb->bdes = (svsp->efuse[9] >> 16) & GENMASK(7, 0); + svsb->mdes = (svsp->efuse[9] >> 24) & GENMASK(7, 0); + svsb->dcbdet = (svsp->efuse[17] >> 16) & GENMASK(7, 0); + svsb->dcmdet = (svsp->efuse[17] >> 24) & GENMASK(7, 0); + svsb->vmax += svsb->dvt_fixed; + } + } + + /* Thermal efuse parsing */ + cell = nvmem_cell_get(svsp->dev, "t-calibration-data"); + if (IS_ERR_OR_NULL(cell)) { + dev_err(svsp->dev, "no thermal cell, no mon mode\n"); + for (idx = 0; idx < svsp->bank_num; idx++) { + svsb = &svsp->banks[idx]; + svsb->mode_support &= ~SVSB_MODE_MON; + } + + return true; + } + + svsp->tefuse = nvmem_cell_read(cell, &svsp->tefuse_num); + svsp->tefuse_num /= sizeof(u32); + nvmem_cell_put(cell); + + for (i = 0; i < svsp->tefuse_num; i++) + if (svsp->tefuse[i] != 0) + break; + + if (i == svsp->tefuse_num) + golden_temp = 50; /* All thermal efuse data are 0 */ + else + golden_temp = (svsp->tefuse[0] >> 24) & GENMASK(7, 0); + + for (idx = 0; idx < svsp->bank_num; idx++) { + svsb = &svsp->banks[idx]; + + if (svsb->sw_id != SVSB_GPU) + return false; + + svsb->mts = 500; + svsb->bts = (((500 * golden_temp + 250460) / 1000) - 25) * 4; + } + + return true; +} + static bool svs_mt8183_efuse_parsing(struct svs_platform *svsp) { struct thermal_parameter tp; @@ -1598,10 +1944,11 @@ static int svs_status_debug_show(struct seq_file *m, void *v) ret = svs_get_bank_zone_temperature(svsb->tzone_name, &tzone_temp); if (ret) - seq_printf(m, "%s: no \"%s\" zone?\n", svsb->name, - svsb->tzone_name); + seq_printf(m, "%s: no \"%s\" zone? turn_pt = %u\n", + svsb->name, svsb->tzone_name, svsb->turn_pt); else - seq_printf(m, "%s: temperature = %d\n", svsb->name, tzone_temp); + seq_printf(m, "%s: temperature = %d, turn_pt = %u\n", + svsb->name, tzone_temp, svsb->turn_pt); for (i = 0; i < svsb->opp_count; i++) { opp = dev_pm_opp_find_freq_exact(svsb->opp_dev, @@ -1734,6 +2081,89 @@ static int svs_create_svs_debug_cmds(struct svs_platform *svsp) return 0; } +static struct svs_bank svs_mt8192_banks[] = { + { + .sw_id = SVSB_GPU, + .set_freqs_pct = svs_set_freqs_pct_v3, + .get_vops = svs_get_vops_v3, + .hw_id = 0, + .tzone_name = "gpu1", + .buck_name = "mali", + .volt_flags = SVSB_INIT02_RM_DVTFIXED | + SVSB_MON_VOLT_IGNORE, + .mode_support = SVSB_MODE_INIT02, + .opp_count = 16, + .freq_base = 688000000, + .turn_freq_base = 688000000, + .vboot = 0x38, + .volt_step = 6250, + .volt_base = 400000, + .volt_offset = 0, + .vmax = 0x60, + .vmin = 0x1a, + .dthi = 0x1, + .dtlo = 0xfe, + .det_window = 0xa28, + .det_max = 0xffff, + .age_config = 0x555555, + .agem = 0, + .dc_config = 0x1, + .dvt_fixed = 0x1, + .vco = 0x18, + .chk_shift = 0x87, + .temp_upper_bound = 0x64, + .temp_lower_bound = 0xb2, + .tzone_high_temp = 85000, + .tzone_high_temp_offset = 0, + .tzone_low_temp = 25000, + .tzone_low_temp_offset = 7, + .core_sel = 0x0fff0100, + .int_st = BIT(0), + .ctl0 = 0x00540003, + .type = SVSB_LOW, + }, + { + .sw_id = SVSB_GPU, + .set_freqs_pct = svs_set_freqs_pct_v3, + .get_vops = svs_get_vops_v3, + .hw_id = 1, + .tzone_name = "gpu1", + .buck_name = "mali", + .volt_flags = SVSB_INIT02_RM_DVTFIXED | + SVSB_MON_VOLT_IGNORE, + .mode_support = SVSB_MODE_INIT02 | SVSB_MODE_MON, + .opp_count = 16, + .freq_base = 902000000, + .turn_freq_base = 688000000, + .vboot = 0x38, + .volt_step = 6250, + .volt_base = 400000, + .volt_offset = 0, + .vmax = 0x60, + .vmin = 0x1a, + .dthi = 0x1, + .dtlo = 0xfe, + .det_window = 0xa28, + .det_max = 0xffff, + .age_config = 0x555555, + .agem = 0, + .dc_config = 0x1, + .dvt_fixed = 0x6, + .vco = 0x18, + .chk_shift = 0x87, + .temp_upper_bound = 0x64, + .temp_lower_bound = 0xb2, + .tzone_high_temp = 85000, + .tzone_high_temp_offset = 0, + .tzone_low_temp = 25000, + .tzone_low_temp_offset = 7, + .core_sel = 0x0fff0101, + .int_st = BIT(1), + .ctl0 = 0x00540003, + .type = SVSB_HIGH, + }, +}; + static struct svs_bank svs_mt8183_banks[] = { { .sw_id = SVSB_CPU_LITTLE, @@ -1888,6 +2318,46 @@ static struct svs_bank svs_mt8183_banks[] = { }, }; +static int svs_get_svs_mt8192_platform_data(struct svs_platform *svsp) +{ + struct device *dev; + struct svs_bank *svsb; + u32 idx; + + svsp->name = "mt8192-svs"; + svsp->banks = svs_mt8192_banks; + svsp->efuse_parsing = svs_mt8192_efuse_parsing; + svsp->regs = svs_regs_v2; + svsp->irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT; + svsp->bank_num = ARRAY_SIZE(svs_mt8192_banks); + svsp->efuse_check = 9; + + svsp->rst = devm_reset_control_get_optional(svsp->dev, "svs_rst"); + if (IS_ERR(svsp->rst)) { + dev_err_probe(svsp->dev, PTR_ERR(svsp->rst), + "cannot get svs reset control\n"); + return PTR_ERR(svsp->rst); + } + + dev = svs_add_device_link(svsp, "lvts"); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + for (idx = 0; idx < svsp->bank_num; idx++) { + svsb = &svsp->banks[idx]; + + if (svsb->type == SVSB_HIGH) + svsb->opp_dev = svs_add_device_link(svsp, "mali"); + else if (svsb->type == SVSB_LOW) + svsb->opp_dev = svs_get_subsys_device(svsp, "mali"); + + if (IS_ERR(svsb->opp_dev)) + return PTR_ERR(svsb->opp_dev); + } + + return 0; +} + static int svs_get_svs_mt8183_platform_data(struct svs_platform *svsp) { struct device *dev; @@ -1941,6 +2411,9 @@ static const struct of_device_id mtk_svs_of_match[] = { { .compatible = "mediatek,mt8183-svs", .data = &svs_get_svs_mt8183_platform_data, + }, { + .compatible = "mediatek,mt8192-svs", + .data = &svs_get_svs_mt8192_platform_data, }, { /* Sentinel */ },
Signed-off-by: Roger Lu <roger.lu@mediatek.com> --- drivers/soc/mediatek/mtk-svs.c | 485 ++++++++++++++++++++++++++++++++- 1 file changed, 479 insertions(+), 6 deletions(-)